展会时间:2020-03-26 至 2020-03-28
展会概况 北京国际防爆电气技术设备展览会(Expec)是中国防爆电气领域的行业例会,每年春季在北京举办。Expec2020与cippe一年一度的世界石油装备大会(中国国 ...
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